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A hockey puck slides across a frozen pond. If ice friction and air resistance are neglected, the force needed to keep the puck sliding at constant velocity is the weight of the puck divided by the mass of the puck. the mass of the puck multiplied by 10 m/s2. 0 N. equal to the weight of the puck. none of the above

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Answer:

The force needed to keep the puck sliding at constant velocity is 0N

Explanation:

Since the ice friction and air resistance are neglected, the force needed to keep the puck sliding at constant velocity is 0N.

The acceleration due to gravity (g) will be zero since there is no ice friction and air resistance taken into consideration, and therefore,

F = m*g = m*0 = 0N

The constant velocity is 0 N.

The following information should be considered:

  • As per the first law of newton there is 0N.
  • When the object is in motion so the velocity should not be changed until there is non-balanced forced acted.
  • As the force is no acted so it should be continue to the slide at the same velocity.

Therefore we can conclude that the constant velocity is 0 N.

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